CS 201
Lab 9- Grade Multiple Choice Exam

Objectives:

• Grade an n-question multiple-choice exam (for n between 1 and 50). Provide feedback about the most frequently missed questions.

Readings:

• Read Chapter 8 in the Hanly/Koffman text.

Deliverables: (DUE 72 HOURS AFTER THE END OF YOUR LAB).

• Submittal of the following files:
  • Makefile
  • Proto.h
  • Lab8.c
  • GetAnswers.c

TO DO (for this lab)

• Design and Write a program to solve Programming Project #1 on page 422-423 of the Hanly/Koffman text.
• The book mentions "an open input file" and an additional case when you may need to call function fgetAnswers. I want you to use redirection to read from a data file and to write to a data file. This means you use regular scanf and printf functions. Function fgetAnswers needs to read only from a keyboard or from a re-directed file.
• To read and write from/to files, you run your program by doing:
$ Lab9 < examdat.txt > report.txt
• Sample input file (e.g. examdat.txt):

5 dbbac

111 dabac

102 dcbdc

251 dbbac

The first line of input file includes: (1) the number of questions that were given during a test, (2) single space, and (3) the correct answers listed one after another (no space there!). Assume, there cannot be more than 50 questions, and that the number of students is unknown. Assume every student ID is a unique, 3-digit integer. The rest you can learn from the textbook... :)

• Sample output file (e.g. report.txt):

Exam Report

Question   1  2  3  4  5

Answer     d  b  b  a  c

 ID   Score(%)

111     80

102     60

251    100

Question   1  2  3  4  5

Missed by  0  2  0  1  0

Helpful Hints

• Sample1 Input File
• Sample1 Output File
• Sample2 Input File
• Sample2 Output File

Grading Scheme

Program compile and execute 20%
Program meets all specifications 60% (e.g. makefile, proto.h, input/output, etc. Also ask your TA specifically about what preciously he is looking for)
Program follow code conventions and contain proper documentation. 20%